"The answer is that I will not be a candidate. What could have been a complicated decision was in the end very simple: on matters affecting us all, our family constitution gives a veto to the women’s caucus, and there is no override provision. Simply put, I find myself caught between two duties. I love my country; I love my family more."

The Indianapolis Star hints that Daniels' marital history would likely become an issue:

[His] wife, Cheri, had filed for divorce in 1993. She later married a California physician before divorcing again and remarrying Daniels in 1997. That already had come under fire, with questions raised about Cheri leaving four young daughters behind in Indiana — something Daniels denied in a separate statement Saturday night.

Daniels previously served as one of President George W. Bush's top economic advisors—as the director of the Office of Management and Budget. Campaigning on the Bush Administration's great "success" in "controlling" spending (and creating a recession) may have been a perceived as a little bit of a problem, too.